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3 years ago

Which is a characteristic of a nonelectrolyte?

Chemistry

2 answers:

Sonja [21]3 years ago

8 0

Answer: Option (A) is the correct answer.

Explanation:

Non-electrolytes are the substances which do not dissociate into a solution or water to form ions.

Since, non-electrolytes do not dissociate into ions. Hence, they do conduct electricity.

Thus, we can conclude that it does not dissociate or ionize in water is a characteristic of a non-electrolyte.

Non-electrolytes are neither partially ionizable nor do they conduct electricity poorly. Therefore, out of the given options, only option (A) is the correct answer.

12345 [234]3 years ago

7 0

It is A on edge test

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Hydrogen (H) and Beryllium (Be) are members of the same <br> a Group <br> b Period <br> c Neither

Solnce55 [7]

Answer:

C. Neither

Explanation:

According to the periodic table, Hydrogen is in group 1 and period 1. Beryllium is in group 2, period 2.

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3 years ago

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A cube has a mass of 27 g and length of 3cm. What is it’s density

serious [3.7K]

D = m/v. v = (3)^3 = 27.
D = 27/27. D = 1g/cm^3

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3 years ago

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The smell of hot food moves faster than the smell of cold food. Which property of gas is responsible for this?

zhenek [66]

The answer would be kinetic energy. :)

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3 years ago

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If a compound has a composition of 82% nitrogen and 18% hydrogen, what is the empirical formula for this compound

Damm [24]

Answer: The empirical formula for the given compound is $NH_3$

Explanation : Given,

Percentage of H = 18 %

Percentage of N = 82 %

Let the mass of compound be 100 g. So, percentages given are taken as mass.

Mass of H = 18 g

Mass of N = 82 g

To formulate the empirical formula, we need to follow some steps:

Step 1: Converting the given masses into moles.

Moles of Hydrogen = $\frac{\text{Given mass of Hydrogen}}{\text{Molar mass of Hydrogen}}=\frac{18g}{1g/mole}=18moles$

Moles of Nitrogen = $\frac{\text{Given mass of nitrogen}}{\text{Molar mass of nitrogen}}=\frac{82g}{14g/mole}=5.8moles$

Step 2: Calculating the mole ratio of the given elements.

For the mole ratio, we divide each value of the moles by the smallest number of moles calculated which is 5.8 moles.

For Hydrogen = $\frac{18}{5.8}=3.10\approx 3$

For Nitrogen = $\frac{5.8}{5.8}=1$

Step 3: Taking the mole ratio as their subscripts.

The ratio of H : N = 3 : 1

Hence, the empirical formula for the given compound is $NH_3$

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3 years ago

A student measures the heights of four bean plants grown in different types of soil. The amount of water given to each plant is

Lorico [155]

Answer:

The independent variable here is the types of soil

Explanation:

An independent variable is the variable that is not affected by the outcome of other variables in a given experiment. This variable is the variable that is intentionally altered/changed (directly or indirectly) by the researcher in order/expected to produce a result for the experiment. Thus, the independent variable here is the types of soil. This is because the soil was intentionally changed/varied by the researcher and it's expected to determine the heights of the bean plants grown.

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3 years ago